Iranian authorities have executed a prisoner convicted on drug-related charges in Ghezel Hesar Prison in Karaj, Alborz Province.

Hossein Biabani, from the city of Harsin in Kermanshah Province, was executed at dawn on 27 August, the Kurdistan Human Rights Network (KHRN) has learned.

In the days prior to his execution, Biabani was transferred to solitary confinement in preparation for the enforcement of his death sentence.

He was arrested several years ago on charges connected to drug trafficking and subsequently sentenced to death.